Speaker 1: our forests are an important ecosystem for plants and animals, yet they're shrinking rapidly. speaker 2: you're going to lose the support of the teachers' union if we don't see an increase in wages. speaker 3: allowing individual stores to ban customers from carrying guns is a violation of the second amendment. speaker 4: there has been significant concern among the elderly over the increased use of electronic voting. which speaker most likely represents an economic interest group?